Phone:

Meeting ID: 3824

Chair: Tasso Tzioumis

Attendance: Cormac Reynolds, Hayley Bignall (Curtin); Tasso Tzioumis, Chris Phillips, Phil Edwards (CASS Marsfield); Jamie McCallum, Brett Reid (UTas); Jamie Stevens, Yiannis Gonidakis (CASS Narrabri)

Apologies: Shinji Horiuchi (Tid - report provided); Simon Ellingsen (UTas); Shaun Amy (CASS)

Agenda

• Debrief from recent VLBI sessions (July-August 2011)
  • 20-26 July 2011
  • 12-15 August 2011

• Reports from observatories & correlator(s)
  • ATNF
  • UTas
  • Curtin
  • Tid
  • NZ
  • AuScope
  • Hart

• Planning for next VLBI session(s)
  • 10-15 November 2011
    • Schedules
    • Telescopes
    • Observers

• March 6-11 2012
• General comments

• e-VLBI developments/demos
  • official e-VLBI demo to Hobart
  • e-VLBI to Brazil
  • ASKAP network?

• * Review of Actions from last meeting 18 July 2011

• Any other issues

Actions arising

CARRIED FORWARD/UPDATED

• Consolidation of the LBA Archive to include all ATNF + Swinburne + Curtin correlated LBA data. Should also add in eVLBI output data. Maintain complete archives at Curtin and ATNF (ATNF/Curtin)
  • ATNF to develop online access to this archive (ATNF) - Continuing
  • Arrange ATOA on-line access to archive (ATNF)
• Copy LBA data archive from Curtin to ATNF (Curtin, Chris) continuing

• Guidelines for phasing the atca more often during vlbi observations (ATNF) - to be revisited

• Implement upgrade for programmable cable changes on VLBI DAS. (Chris, Jamie S) continuing
• Contact Peter Mirtchin re DAS remote cabling changes via VSIC (Tasso)

• Update Parkes VLBI notes on Wiki (Jamie, JER, Tasso)
  • Mk5 notes for Parkes on Wiki (Chris, JER, Tasso)
  • Parkes Calibration notes (JER, Ettore)

• Investigate/implement mixed mode correlation (64 MHz & 4 x 16 MHz) at Curtin correlator (Cormac, Chris) continuing

• Proposal for VLBI with GMRT for next round (All) continuing

• Follow-up of zoom-modes for VLBI on atca (Jamie, Tasso) Continuing
• Feed-back on tied-array operation (correlator)

• Report on possible persistent frequency problem at Cd (correlator)

• Ww issues at X-band such as pointing to be addressed (AUT) - Huge progress
• Get AuScope fix for Elevation encoder drift to NZ and Parkes (Jim) done

• Try automatic pcal via schedules on atca (Jamie S)

• Investigate sideband separation at atca (weak fringes seen on inversion) (Chris, Cormac, Jamie)

• Need to train observers for all antennas as more remote observing is anticipated (Tasso) continuing

• Transfer of LBA archive from Curtin to ATNF needs route. Firewall issues? (Chris, Shaun)

NEW ACTION ITEMS

• Need 1 Gbps access to Mk5b unit at Parkes. (Chris, Shaun) done

• Acquire 3 TB portable eSATA disks for vlbi data transfers (e.g. ASKAP) (Tasso, Chris) done

• Check Mk4 formatter at Hobart for large (~10 usec) clock jumps on 16 MHz bands (UTas)

• Clarify mode-settings and channel ordering on the Mk5b at Parkes. May need tests with drudg and/or test-tone+autocorrelation (Chris)

• Check with AUT group re Ww issues with DBBC and X-band pointing (Tasso)

• Ask PIs to check Wiki-pages for final setup verification (Cormac, Phil)

• Trial shipping of MK5 disks from Parkes and Tid to Hobart for e-transfers (Chris, Shinji)

• Verify polarisation status of Tid 70m receivers at S and X (Tasso, Shinji)

• Organise e-VLBI demo with Brazil (Tasso)

• Check on e-VLBI demo to Hobart (Tasso, Chris, Simon)

• Provide Tsys recording info as per Tingay email (Chris)

Next meeting: 08 November 2011, 13:30 Sydney summer time.